Grass Lake Weather Forecast

    • 39
    • 58

    Increasing Clouds

    • 44
    • 60

    Rain Showers

    • 39
    • 59

    Rain Showers

    • 34
    • 55

    Sunny

    • 44
    • 64

    Breezy

    • 45
    • 69

    Partly Sunny

Today 13 Oct Minnehaha

Mostly sunny. Cooler with Highs in the upper 50s. North Winds 5 to 10 Mph.

Tonight 13 Oct Minnehaha

Partly cloudy. Lows around 40. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Lake Temperature Statistics

October Temperature

Sioux Falls, Foss Field (14.3 miles)

  • Lowest 2 October, 2026

    40.6 °F

  • Average October

    62.8 °F

  • Highest 10 October, 2026

    89.1 °F

Climate (2021–2026)

Sioux Falls, Foss Field (14.3 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    61 °F
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